The idea of the modern-day rehabilitation center was also invented by Rush, who called for drunkards to be taken off the streets and locked up in a special asylum in Philadelphia called the Sober House.

According to "The Horse," a new exhibit at the Field Museum, every modern-day horse—including the palomino that played Mister Ed—is descended from one genus, Equus, which survived the Ice Age some 11 million years ago in Eastern Europe and Central Asia.